avatat app doesn't remove thumbmails under resized folder

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What steps will reproduce the problem?
1. create a custom avatar size using avatar.create_thumbnail(size)
2. verify that the custom avatar exists on the file system 
under /user/resized/
3. delete the avatar using the web admin.
4. verify that the avatar still exists on the file system.

What is the expected output? What do you see instead?
When deleteing an avatar all the thumbnails should be removed otherwize 
the file system will contain phantom files.

What version of the product are you using? On what operating system?
0.7dev (before the code sprint)

Please provide any additional information below.

Original issue reported on code.google.com by pablo.platt@gmail.com on 5 Feb 2009 at 3:19

[GoogleCodeExporter]

Original comment by pyDanny on 13 Mar 2009 at 4:33

• Added labels: Milestone-0.7

[GoogleCodeExporter]

Moved to http://code.pinaxproject.com/tasks/task/63/

Original comment by pyDanny on 31 Mar 2009 at 10:50

• Changed state: MovedToCpc